2 3e4749f7 2020-10-02 op * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
4 3e4749f7 2020-10-02 op * Permission to use, copy, modify, and distribute this software for any
5 3e4749f7 2020-10-02 op * purpose with or without fee is hereby granted, provided that the above
6 3e4749f7 2020-10-02 op * copyright notice and this permission notice appear in all copies.
8 3e4749f7 2020-10-02 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 3e4749f7 2020-10-02 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 3e4749f7 2020-10-02 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 3e4749f7 2020-10-02 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 3e4749f7 2020-10-02 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 3e4749f7 2020-10-02 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 3e4749f7 2020-10-02 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 52418c8d 2021-02-12 op #include "gmid.h"
19 8443bff7 2021-01-25 op #include <sys/stat.h>
21 592fd624 2020-10-07 op #include <errno.h>
22 3e4749f7 2020-10-02 op #include <fcntl.h>
23 5777923b 2021-06-29 op #include <getopt.h>
24 7e1df73d 2021-03-31 op #include <libgen.h>
25 bcf5d929 2021-02-01 op #include <limits.h>
26 ae08ec7d 2021-01-25 op #include <pwd.h>
27 0cf902af 2020-11-03 op #include <signal.h>
28 3e4749f7 2020-10-02 op #include <string.h>
30 f98e9045 2021-06-29 op static const char *opts = "6c:D:d:fH:hnP:p:Vvx:";
32 5777923b 2021-06-29 op static struct option longopts[] = {
33 5777923b 2021-06-29 op {"help", no_argument, NULL, 'h'},
34 5777923b 2021-06-29 op {"version", no_argument, NULL, 'V'},
35 5777923b 2021-06-29 op {NULL, 0, NULL, 0},
38 8ad1c570 2021-05-09 op struct fcgi fcgi[FCGI_MAX];
40 b8e64ccd 2021-03-31 op struct vhosthead hosts;
42 bc99d868 2021-03-19 op int sock4, sock6;
44 bc99d868 2021-03-19 op struct imsgbuf logibuf, exibuf, servibuf[PROC_MAX];
46 7b2d7432 2021-05-01 op const char *config_path, *certs_dir, *hostname, *pidfile, *cgi;
48 15902770 2021-01-15 op struct conf conf;
50 ca21e100 2021-02-04 op struct tls_config *tlsconf;
51 ae08ec7d 2021-01-25 op struct tls *ctx;
54 b9c9123b 2021-03-20 op dummy_handler(int signo)
59 7e1df73d 2021-03-31 op /* wrapper around dirname(3). dn must be PATH_MAX+1 at least. */
61 7e1df73d 2021-03-31 op pdirname(const char *path, char *dn)
63 7e1df73d 2021-03-31 op char p[PATH_MAX+1];
66 7e1df73d 2021-03-31 op strlcpy(p, path, sizeof(p));
67 7e1df73d 2021-03-31 op t = dirname(p);
68 7e1df73d 2021-03-31 op memmove(dn, t, strlen(t)+1);
72 7e1df73d 2021-03-31 op mkdirs(const char *path, mode_t mode)
74 7e1df73d 2021-03-31 op char dname[PATH_MAX+1];
76 7e1df73d 2021-03-31 op pdirname(path, dname);
77 7e1df73d 2021-03-31 op if (!strcmp(dname, "/"))
79 7e1df73d 2021-03-31 op mkdirs(dname, mode);
80 7e1df73d 2021-03-31 op if (mkdir(path, mode) != 0 && errno != EEXIST)
81 8443bff7 2021-01-25 op fatal("can't mkdir %s: %s", path, strerror(errno));
84 8443bff7 2021-01-25 op /* $XDG_DATA_HOME/gmid */
86 8443bff7 2021-01-25 op data_dir(void)
88 8443bff7 2021-01-25 op const char *home, *xdg;
91 8443bff7 2021-01-25 op if ((xdg = getenv("XDG_DATA_HOME")) == NULL) {
92 8443bff7 2021-01-25 op if ((home = getenv("HOME")) == NULL)
93 8443bff7 2021-01-25 op errx(1, "XDG_DATA_HOME and HOME both empty");
94 8443bff7 2021-01-25 op if (asprintf(&t, "%s/.local/share/gmid", home) == -1)
95 8443bff7 2021-01-25 op err(1, "asprintf");
97 7e1df73d 2021-03-31 op if (asprintf(&t, "%s/gmid", xdg) == -1)
98 7e1df73d 2021-03-31 op err(1, "asprintf");
101 7e1df73d 2021-03-31 op mkdirs(t, 0755);
106 8443bff7 2021-01-25 op load_local_cert(const char *hostname, const char *dir)
108 8443bff7 2021-01-25 op char *cert, *key;
109 b8e64ccd 2021-03-31 op struct vhost *h;
111 8443bff7 2021-01-25 op if (asprintf(&cert, "%s/%s.cert.pem", dir, hostname) == -1)
112 8443bff7 2021-01-25 op errx(1, "asprintf");
113 8443bff7 2021-01-25 op if (asprintf(&key, "%s/%s.key.pem", dir, hostname) == -1)
114 8443bff7 2021-01-25 op errx(1, "asprintf");
116 8443bff7 2021-01-25 op if (access(cert, R_OK) == -1 || access(key, R_OK) == -1)
117 8443bff7 2021-01-25 op gen_certificate(hostname, cert, key);
119 b8e64ccd 2021-03-31 op h = TAILQ_FIRST(&hosts);
120 b8e64ccd 2021-03-31 op h->cert = cert;
121 b8e64ccd 2021-03-31 op h->key = key;
122 b8e64ccd 2021-03-31 op h->domain = hostname;
126 ae08ec7d 2021-01-25 op load_vhosts(void)
128 fdea6aa0 2021-04-30 op struct vhost *h;
129 fdea6aa0 2021-04-30 op struct location *l;
131 b8e64ccd 2021-03-31 op TAILQ_FOREACH(h, &hosts, vhosts) {
132 fdea6aa0 2021-04-30 op TAILQ_FOREACH(l, &h->locations, locations) {
133 fdea6aa0 2021-04-30 op if (l->dir == NULL)
135 fdea6aa0 2021-04-30 op if ((l->dirfd = open(l->dir, O_RDONLY | O_DIRECTORY)) == -1)
136 fdea6aa0 2021-04-30 op fatal("open %s for domain %s", l->dir, h->domain);
142 9468027b 2020-10-15 op make_socket(int port, int family)
145 9468027b 2020-10-15 op struct sockaddr_in addr4;
146 9468027b 2020-10-15 op struct sockaddr_in6 addr6;
147 9468027b 2020-10-15 op struct sockaddr *addr;
148 9468027b 2020-10-15 op socklen_t len;
150 9468027b 2020-10-15 op switch (family) {
151 9468027b 2020-10-15 op case AF_INET:
152 9468027b 2020-10-15 op bzero(&addr4, sizeof(addr4));
153 9468027b 2020-10-15 op addr4.sin_family = family;
154 9468027b 2020-10-15 op addr4.sin_port = htons(port);
155 9468027b 2020-10-15 op addr4.sin_addr.s_addr = INADDR_ANY;
156 9468027b 2020-10-15 op addr = (struct sockaddr*)&addr4;
157 9468027b 2020-10-15 op len = sizeof(addr4);
160 9468027b 2020-10-15 op case AF_INET6:
161 9468027b 2020-10-15 op bzero(&addr6, sizeof(addr6));
162 9468027b 2020-10-15 op addr6.sin6_family = AF_INET6;
163 9468027b 2020-10-15 op addr6.sin6_port = htons(port);
164 9468027b 2020-10-15 op addr6.sin6_addr = in6addr_any;
165 9468027b 2020-10-15 op addr = (struct sockaddr*)&addr6;
166 9468027b 2020-10-15 op len = sizeof(addr6);
170 9468027b 2020-10-15 op /* unreachable */
174 9468027b 2020-10-15 op if ((sock = socket(family, SOCK_STREAM, 0)) == -1)
175 80bbcad5 2021-01-10 op fatal("socket: %s", strerror(errno));
178 3e4749f7 2020-10-02 op if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &v, sizeof(v)) == -1)
179 80bbcad5 2021-01-10 op fatal("setsockopt(SO_REUSEADDR): %s", strerror(errno));
182 3e4749f7 2020-10-02 op if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, &v, sizeof(v)) == -1)
183 80bbcad5 2021-01-10 op fatal("setsockopt(SO_REUSEPORT): %s", strerror(errno));
185 592fd624 2020-10-07 op mark_nonblock(sock);
187 9468027b 2020-10-15 op if (bind(sock, addr, len) == -1)
188 80bbcad5 2021-01-10 op fatal("bind: %s", strerror(errno));
190 3e4749f7 2020-10-02 op if (listen(sock, 16) == -1)
191 80bbcad5 2021-01-10 op fatal("listen: %s", strerror(errno));
197 ae08ec7d 2021-01-25 op setup_tls(void)
199 ae08ec7d 2021-01-25 op struct vhost *h;
201 881a9dd9 2021-01-16 op if ((tlsconf = tls_config_new()) == NULL)
202 132cae8c 2021-01-18 op fatal("tls_config_new");
204 881a9dd9 2021-01-16 op /* optionally accept client certs, but don't try to verify them */
205 881a9dd9 2021-01-16 op tls_config_verify_client_optional(tlsconf);
206 881a9dd9 2021-01-16 op tls_config_insecure_noverifycert(tlsconf);
208 881a9dd9 2021-01-16 op if (tls_config_set_protocols(tlsconf, conf.protos) == -1)
209 132cae8c 2021-01-18 op fatal("tls_config_set_protocols");
211 881a9dd9 2021-01-16 op if ((ctx = tls_server()) == NULL)
212 132cae8c 2021-01-18 op fatal("tls_server failure");
214 b8e64ccd 2021-03-31 op h = TAILQ_FIRST(&hosts);
216 ae08ec7d 2021-01-25 op /* we need to set something, then we can add how many key we want */
217 b8e64ccd 2021-03-31 op if (tls_config_set_keypair_file(tlsconf, h->cert, h->key))
218 ca21e100 2021-02-04 op fatal("tls_config_set_keypair_file failed for (%s, %s)",
219 b8e64ccd 2021-03-31 op h->cert, h->key);
221 b8e64ccd 2021-03-31 op while ((h = TAILQ_NEXT(h, vhosts)) != NULL) {
222 ae08ec7d 2021-01-25 op if (tls_config_add_keypair_file(tlsconf, h->cert, h->key) == -1)
223 ae08ec7d 2021-01-25 op fatal("failed to load the keypair (%s, %s)",
224 ae08ec7d 2021-01-25 op h->cert, h->key);
227 881a9dd9 2021-01-16 op if (tls_configure(ctx, tlsconf) == -1)
228 132cae8c 2021-01-18 op fatal("tls_configure: %s", tls_error(ctx));
232 bc99d868 2021-03-19 op listener_main(struct imsgbuf *ibuf)
235 ae08ec7d 2021-01-25 op load_default_mime(&conf.mime);
236 ae08ec7d 2021-01-25 op load_vhosts();
237 bc99d868 2021-03-19 op loop(ctx, sock4, sock6, ibuf);
242 8d6ae384 2021-01-24 op init_config(void)
244 b8e64ccd 2021-03-31 op TAILQ_INIT(&hosts);
246 15902770 2021-01-15 op conf.port = 1965;
247 15902770 2021-01-15 op conf.ipv6 = 0;
248 5bc3c98e 2021-01-15 op conf.protos = TLS_PROTOCOL_TLSv1_2 | TLS_PROTOCOL_TLSv1_3;
250 b2a6b613 2021-01-21 op init_mime(&conf.mime);
252 ae08ec7d 2021-01-25 op conf.chroot = NULL;
253 ae08ec7d 2021-01-25 op conf.user = NULL;
255 a709ddf5 2021-02-07 op conf.prefork = 3;
259 ca21e100 2021-02-04 op free_config(void)
261 b8e64ccd 2021-03-31 op struct vhost *h, *th;
262 b8e64ccd 2021-03-31 op struct location *l, *tl;
263 9cc630aa 2021-04-28 op struct envlist *e, *te;
264 cc8c2901 2021-04-29 op struct alist *a, *ta;
267 419a4235 2021-04-28 op v = conf.verbose;
269 ca21e100 2021-02-04 op free(conf.chroot);
270 ca21e100 2021-02-04 op free(conf.user);
271 ca21e100 2021-02-04 op memset(&conf, 0, sizeof(conf));
273 419a4235 2021-04-28 op conf.verbose = v;
275 b8e64ccd 2021-03-31 op TAILQ_FOREACH_SAFE(h, &hosts, vhosts, th) {
276 b8e64ccd 2021-03-31 op TAILQ_FOREACH_SAFE(l, &h->locations, locations, tl) {
277 b8e64ccd 2021-03-31 op TAILQ_REMOVE(&h->locations, l, locations);
279 ca21e100 2021-02-04 op free((char*)l->match);
280 ca21e100 2021-02-04 op free((char*)l->lang);
281 ca21e100 2021-02-04 op free((char*)l->default_mime);
282 ca21e100 2021-02-04 op free((char*)l->index);
283 6abda252 2021-02-06 op free((char*)l->block_fmt);
284 fdea6aa0 2021-04-30 op free((char*)l->dir);
286 fdea6aa0 2021-04-30 op if (l->dirfd != -1)
287 fdea6aa0 2021-04-30 op close(l->dirfd);
292 9cc630aa 2021-04-28 op TAILQ_FOREACH_SAFE(e, &h->env, envs, te) {
293 3b33eab3 2021-06-12 op TAILQ_REMOVE(&h->env, e, envs);
295 ab1e0169 2021-06-12 op free(e->name);
296 ab1e0169 2021-06-12 op free(e->value);
300 ab1e0169 2021-06-12 op TAILQ_FOREACH_SAFE(e, &h->params, envs, te) {
301 ab1e0169 2021-06-12 op TAILQ_REMOVE(&h->params, e, envs);
303 9cc630aa 2021-04-28 op free(e->name);
304 9cc630aa 2021-04-28 op free(e->value);
308 cc8c2901 2021-04-29 op TAILQ_FOREACH_SAFE(a, &h->aliases, aliases, ta) {
309 3b33eab3 2021-06-12 op TAILQ_REMOVE(&h->aliases, a, aliases);
311 cc8c2901 2021-04-29 op free(a->alias);
315 fdea6aa0 2021-04-30 op free((char*)h->domain);
316 fdea6aa0 2021-04-30 op free((char*)h->cert);
317 fdea6aa0 2021-04-30 op free((char*)h->key);
318 fdea6aa0 2021-04-30 op free((char*)h->cgi);
319 fdea6aa0 2021-04-30 op free((char*)h->entrypoint);
321 b8e64ccd 2021-03-31 op TAILQ_REMOVE(&hosts, h, vhosts);
325 8ad1c570 2021-05-09 op for (i = 0; i < FCGI_MAX; ++i) {
326 8ad1c570 2021-05-09 op if (fcgi[i].path == NULL && fcgi[i].prog == NULL)
328 8ad1c570 2021-05-09 op free(fcgi[i].path);
329 8ad1c570 2021-05-09 op free(fcgi[i].port);
330 8ad1c570 2021-05-09 op free(fcgi[i].prog);
333 ca21e100 2021-02-04 op tls_free(ctx);
334 ca21e100 2021-02-04 op tls_config_free(tlsconf);
338 1d3eb470 2021-03-20 op wait_signal(void)
340 ca21e100 2021-02-04 op sigset_t mask;
343 ca21e100 2021-02-04 op sigemptyset(&mask);
344 ca21e100 2021-02-04 op sigaddset(&mask, SIGHUP);
345 1d3eb470 2021-03-20 op sigaddset(&mask, SIGINT);
346 1d3eb470 2021-03-20 op sigaddset(&mask, SIGTERM);
347 ca21e100 2021-02-04 op sigwait(&mask, &signo);
349 1d3eb470 2021-03-20 op return signo == SIGHUP;
353 ae08ec7d 2021-01-25 op drop_priv(void)
355 ae08ec7d 2021-01-25 op struct passwd *pw = NULL;
357 ae08ec7d 2021-01-25 op if (conf.chroot != NULL && conf.user == NULL)
358 ae08ec7d 2021-01-25 op fatal("can't chroot without an user to switch to after.");
360 ae08ec7d 2021-01-25 op if (conf.user != NULL) {
361 ae08ec7d 2021-01-25 op if ((pw = getpwnam(conf.user)) == NULL)
362 ae08ec7d 2021-01-25 op fatal("can't find user %s", conf.user);
365 ae08ec7d 2021-01-25 op if (conf.chroot != NULL) {
366 ae08ec7d 2021-01-25 op if (chroot(conf.chroot) != 0 || chdir("/") != 0)
367 ae08ec7d 2021-01-25 op fatal("%s: %s", conf.chroot, strerror(errno));
370 ae08ec7d 2021-01-25 op if (pw != NULL) {
371 ae08ec7d 2021-01-25 op if (setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid) == -1)
372 ae08ec7d 2021-01-25 op fatal("setresuid(%d): %s", pw->pw_uid,
373 ae08ec7d 2021-01-25 op strerror(errno));
376 ae08ec7d 2021-01-25 op if (getuid() == 0)
377 3abf91b0 2021-02-07 op log_warn(NULL, "not a good idea to run a network daemon as root");
383 3abf91b0 2021-02-07 op fprintf(stderr,
384 0be2a537 2021-06-29 op "Version: " GMID_STRING "\n"
385 f98e9045 2021-06-29 op "Usage: %s [-fnv] [-c config] [-D macro=value] [-P pidfile]\n"
386 0be2a537 2021-06-29 op " %s [-6hVv] [-d certs-dir] [-H hostname] [-p port] [-x cgi] [dir]\n",
387 0be2a537 2021-06-29 op getprogname(),
388 9327bc04 2021-06-29 op getprogname());
392 376a5407 2021-02-23 op logger_init(void)
396 376a5407 2021-02-23 op if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, p) == -1)
397 376a5407 2021-02-23 op err(1, "socketpair");
399 376a5407 2021-02-23 op switch (fork()) {
401 376a5407 2021-02-23 op err(1, "fork");
403 bc99d868 2021-03-19 op signal(SIGHUP, SIG_IGN);
405 376a5407 2021-02-23 op setproctitle("logger");
406 bc99d868 2021-03-19 op imsg_init(&logibuf, p[1]);
408 bc99d868 2021-03-19 op _exit(logger_main(p[1], &logibuf));
411 bc99d868 2021-03-19 op imsg_init(&logibuf, p[0]);
417 bc99d868 2021-03-19 op serve(int argc, char **argv, struct imsgbuf *ibuf)
419 b8e64ccd 2021-03-31 op char path[PATH_MAX];
421 b8e64ccd 2021-03-31 op struct vhost *h;
422 b8e64ccd 2021-03-31 op struct location *l;
424 2c3e53da 2021-03-03 op if (config_path == NULL) {
425 d672b8fb 2021-02-03 op if (hostname == NULL)
426 d672b8fb 2021-02-03 op hostname = "localhost";
427 d672b8fb 2021-02-03 op if (certs_dir == NULL)
428 d672b8fb 2021-02-03 op certs_dir = data_dir();
429 d672b8fb 2021-02-03 op load_local_cert(hostname, certs_dir);
431 b8e64ccd 2021-03-31 op h = TAILQ_FIRST(&hosts);
432 b8e64ccd 2021-03-31 op h->domain = "*";
434 b8e64ccd 2021-03-31 op l = TAILQ_FIRST(&h->locations);
435 b8e64ccd 2021-03-31 op l->auto_index = 1;
436 b8e64ccd 2021-03-31 op l->match = "*";
438 d672b8fb 2021-02-03 op switch (argc) {
440 fdea6aa0 2021-04-30 op l->dir = getcwd(path, sizeof(path));
443 fdea6aa0 2021-04-30 op l->dir = absolutify_path(argv[0]);
450 fdea6aa0 2021-04-30 op log_notice(NULL, "serving %s on port %d", l->dir, conf.port);
453 d672b8fb 2021-02-03 op /* setup tls before dropping privileges: we don't want user
454 d672b8fb 2021-02-03 op * to put private certs inside the chroot. */
457 2c3e53da 2021-03-03 op for (i = 0; i < conf.prefork; ++i) {
458 2c3e53da 2021-03-03 op if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC,
459 2c3e53da 2021-03-03 op PF_UNSPEC, p) == -1)
460 2c3e53da 2021-03-03 op fatal("socketpair: %s", strerror(errno));
462 2c3e53da 2021-03-03 op switch (fork()) {
464 2c3e53da 2021-03-03 op fatal("fork: %s", strerror(errno));
465 2c3e53da 2021-03-03 op case 0: /* child */
467 bc99d868 2021-03-19 op imsg_init(&exibuf, p[1]);
468 2c3e53da 2021-03-03 op setproctitle("server");
469 bc99d868 2021-03-19 op _exit(listener_main(&exibuf));
472 bc99d868 2021-03-19 op imsg_init(&servibuf[i], p[0]);
476 2c3e53da 2021-03-03 op setproctitle("executor");
478 bc99d868 2021-03-19 op _exit(executor_main(ibuf));
482 419a4235 2021-04-28 op write_pidfile(const char *pidfile)
484 419a4235 2021-04-28 op struct flock lock;
487 419a4235 2021-04-28 op if (pidfile == NULL)
490 419a4235 2021-04-28 op if ((fd = open(pidfile, O_WRONLY|O_CREAT|O_CLOEXEC, 0600)) == -1)
491 419a4235 2021-04-28 op fatal("can't open pidfile %s: %s", pidfile, strerror(errno));
493 419a4235 2021-04-28 op lock.l_start = 0;
494 419a4235 2021-04-28 op lock.l_len = 0;
495 419a4235 2021-04-28 op lock.l_type = F_WRLCK;
496 419a4235 2021-04-28 op lock.l_whence = SEEK_SET;
498 419a4235 2021-04-28 op if (fcntl(fd, F_SETLK, &lock) == -1)
499 419a4235 2021-04-28 op fatal("can't lock %s, gmid is already running?", pidfile);
501 419a4235 2021-04-28 op if (ftruncate(fd, 0) == -1)
502 419a4235 2021-04-28 op fatal("ftruncate: %s: %s", pidfile, strerror(errno));
504 419a4235 2021-04-28 op dprintf(fd, "%d\n", getpid());
510 b8e64ccd 2021-03-31 op setup_configless(int argc, char **argv, const char *cgi)
512 b8e64ccd 2021-03-31 op struct vhost *host;
513 b8e64ccd 2021-03-31 op struct location *loc;
515 b8e64ccd 2021-03-31 op host = xcalloc(1, sizeof(*host));
516 b8e64ccd 2021-03-31 op host->cgi = cgi;
517 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&hosts, host, vhosts);
519 b8e64ccd 2021-03-31 op loc = xcalloc(1, sizeof(*loc));
520 b8e64ccd 2021-03-31 op TAILQ_INSERT_HEAD(&host->locations, loc, locations);
522 e952c505 2021-06-15 op imsg_compose(&logibuf, IMSG_LOG_TYPE, 0, 0, 2, NULL, 0);
523 e952c505 2021-06-15 op imsg_flush(&logibuf);
525 b8e64ccd 2021-03-31 op serve(argc, argv, NULL);
527 b8e64ccd 2021-03-31 op imsg_compose(&logibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
528 b8e64ccd 2021-03-31 op imsg_flush(&logibuf);
532 8d6ae384 2021-01-24 op main(int argc, char **argv)
534 d632468d 2021-03-20 op struct imsgbuf exibuf;
535 2c3e53da 2021-03-03 op int ch, conftest = 0, configless = 0;
536 8e8b2e25 2021-04-28 op int pidfd, old_ipv6, old_port;
538 501e489c 2021-01-24 op init_config();
540 5777923b 2021-06-29 op while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
541 3e4749f7 2020-10-02 op switch (ch) {
543 15902770 2021-01-15 op conf.ipv6 = 1;
544 8443bff7 2021-01-25 op configless = 1;
548 ca21e100 2021-02-04 op config_path = absolutify_path(optarg);
552 f98e9045 2021-06-29 op if (cmdline_symset(optarg) == -1)
553 f98e9045 2021-06-29 op errx(1, "invalid macro: %s", optarg);
557 8443bff7 2021-01-25 op certs_dir = optarg;
558 8443bff7 2021-01-25 op configless = 1;
562 3abf91b0 2021-02-07 op conf.foreground = 1;
566 8443bff7 2021-01-25 op hostname = optarg;
567 8443bff7 2021-01-25 op configless = 1;
575 15902770 2021-01-15 op conftest = 1;
579 8e8b2e25 2021-04-28 op pidfile = optarg;
583 15902770 2021-01-15 op conf.port = parse_portno(optarg);
584 8443bff7 2021-01-25 op configless = 1;
588 fdb43a4c 2021-06-29 op puts("Version: " GMID_STRING);
592 3abf91b0 2021-02-07 op conf.verbose++;
596 15902770 2021-01-15 op /* drop the starting / (if any) */
597 15902770 2021-01-15 op if (*optarg == '/')
599 b8e64ccd 2021-03-31 op cgi = optarg;
600 8443bff7 2021-01-25 op configless = 1;
608 8443bff7 2021-01-25 op argc -= optind;
609 8443bff7 2021-01-25 op argv += optind;
611 d672b8fb 2021-02-03 op if (config_path == NULL) {
612 72bbed91 2021-01-27 op configless = 1;
613 3abf91b0 2021-02-07 op conf.foreground = 1;
614 2c3e53da 2021-03-03 op conf.prefork = 1;
615 3abf91b0 2021-02-07 op conf.verbose++;
618 d672b8fb 2021-02-03 op if (config_path != NULL && (argc > 0 || configless))
619 48b69cb2 2021-04-28 op errx(1, "can't specify options in config mode.");
621 132cae8c 2021-01-18 op if (conftest) {
622 d672b8fb 2021-02-03 op parse_conf(config_path);
623 132cae8c 2021-01-18 op puts("config OK");
627 3abf91b0 2021-02-07 op if (!conf.foreground && !configless) {
628 0170ba02 2021-01-17 op if (daemon(1, 1) == -1)
629 d278a0c3 2021-02-23 op err(1, "daemon");
632 d672b8fb 2021-02-03 op if (config_path != NULL)
633 d672b8fb 2021-02-03 op parse_conf(config_path);
635 d278a0c3 2021-02-23 op logger_init();
637 d672b8fb 2021-02-03 op sock4 = make_socket(conf.port, AF_INET);
639 d672b8fb 2021-02-03 op if (conf.ipv6)
640 d672b8fb 2021-02-03 op sock6 = make_socket(conf.port, AF_INET6);
642 3841a369 2021-04-20 op signal(SIGPIPE, SIG_IGN);
643 3841a369 2021-04-20 op signal(SIGCHLD, SIG_IGN);
645 bc99d868 2021-03-19 op if (configless) {
646 b8e64ccd 2021-03-31 op setup_configless(argc, argv, cgi);
650 e952c505 2021-06-15 op if (conf.foreground) {
651 e952c505 2021-06-15 op imsg_compose(&logibuf, IMSG_LOG_TYPE, 0, 0, 2, NULL, 0);
652 e952c505 2021-06-15 op imsg_flush(&logibuf);
655 8e8b2e25 2021-04-28 op pidfd = write_pidfile(pidfile);
657 b9c9123b 2021-03-20 op /* Linux seems to call the event handlers even when we're
658 1b333122 2021-04-26 op * doing a sigwait. These dummy handlers are here to avoid
659 5d1474a5 2021-04-20 op * being terminated on SIGHUP, SIGINT or SIGTERM. */
660 b9c9123b 2021-03-20 op signal(SIGHUP, dummy_handler);
661 b9c9123b 2021-03-20 op signal(SIGINT, dummy_handler);
662 b9c9123b 2021-03-20 op signal(SIGTERM, dummy_handler);
664 ca21e100 2021-02-04 op /* wait a sighup and reload the daemon */
668 bc99d868 2021-03-19 op if (socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC,
669 bc99d868 2021-03-19 op PF_UNSPEC, p) == -1)
670 bc99d868 2021-03-19 op fatal("socketpair: %s", strerror(errno));
672 ca21e100 2021-02-04 op switch (fork()) {
674 ca21e100 2021-02-04 op fatal("fork: %s", strerror(errno));
677 bc99d868 2021-03-19 op imsg_init(&exibuf, p[1]);
678 bc99d868 2021-03-19 op _exit(serve(argc, argv, &exibuf));
682 bc99d868 2021-03-19 op imsg_init(&exibuf, p[0]);
684 1d3eb470 2021-03-20 op if (!wait_signal())
687 3abf91b0 2021-02-07 op log_info(NULL, "reloading configuration %s", config_path);
689 bc99d868 2021-03-19 op /* close the executor (it'll close the servers too) */
690 bc99d868 2021-03-19 op imsg_compose(&exibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
691 bc99d868 2021-03-19 op imsg_flush(&exibuf);
694 ca21e100 2021-02-04 op old_ipv6 = conf.ipv6;
695 ca21e100 2021-02-04 op old_port = conf.port;
697 ca21e100 2021-02-04 op free_config();
698 ca21e100 2021-02-04 op init_config();
699 ca21e100 2021-02-04 op parse_conf(config_path);
701 ca21e100 2021-02-04 op if (old_port != conf.port) {
702 ca21e100 2021-02-04 op close(sock4);
703 ca21e100 2021-02-04 op close(sock6);
708 ca21e100 2021-02-04 op if (sock6 != -1 && old_ipv6 != conf.ipv6) {
709 ca21e100 2021-02-04 op close(sock6);
713 ca21e100 2021-02-04 op if (sock4 == -1)
714 ca21e100 2021-02-04 op sock4 = make_socket(conf.port, AF_INET);
715 ca21e100 2021-02-04 op if (sock6 == -1 && conf.ipv6)
716 ca21e100 2021-02-04 op sock6 = make_socket(conf.port, AF_INET6);
719 1d3eb470 2021-03-20 op imsg_compose(&exibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
720 1d3eb470 2021-03-20 op imsg_flush(&exibuf);
722 1d3eb470 2021-03-20 op imsg_compose(&logibuf, IMSG_QUIT, 0, 0, -1, NULL, 0);
723 1d3eb470 2021-03-20 op imsg_flush(&logibuf);
725 8e8b2e25 2021-04-28 op if (pidfd != -1)
726 8e8b2e25 2021-04-28 op close(pidfd);